I read your responses regarding locating information on sales for a
specific book.  I was able to get information from Ingram, but am
unsure as to how representative those statistics are of ALL sales in
the US.  Also, the Junglescan would not work for this particular book.
 Furthermore, the book I am trying to find sales data on (THE PROPHET
by Kahlil Gibran) was first published in 1923 and has had well over
130 reprintings. I am trying to establish statics that will illuminate
changes in sales trends (both domestic and iInternational as it has
been translated into more than twenty languages) since the 1950's. 
Any suggestions/advice/info would be much appreciated.  Thanks.